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Compute all parts of given question:
Question: Consider a long, straight horizontal wire, with a current moving to the east.
Part A: What is the direction of the magnetic field created by this wire at a point directly above the wire?
Part B: What is the direction of the magnetic field created by this wire at a point directly to the north of the wire?
Part C: If the wire carries a current of 2.20 A, what is the magnetic field created by the wire at a distance of 3.10 cm from the wire?
Part D: What is the magnetic field at a distance from the wire that is 5 times that given in part (c)?
Please give me an explanation for above question.
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